This lying thing is also a confidence issue for many guys. They don't think that their life is good enough, so they rely on lies to become interesting. They search for good material, never realizing that it is not the material, but the way it is presented that is so crucial and that they ARE interesting enough.
Now, having said all that, there are those lies which are just plain fun. A few openers are like that. But the point is these have little or nothing to do with mis-representing yourself. You should always represent the real you. You are more than equal to the task.
